You can file a petition for child custody in your county's Superior Court. If you are divorcing, the petition will be included in your divorce papers.The Georgia Superior Court Clerks Cooperative Authority has these Family Violence forms in editable PDF format on their website. Packets of forms are available for sale to be used in filing a new case or modifying a case in either the Family or Civil courts. Petition for (Custody) (Visitation). The person seeking a change in custody is the "Petitioner. If you want child support services, please complete the online sign up form. LawHelp Interactive is a website that helps you fill out legal documents for free. LawHelp Interactive is a website that helps you fill out legal documents for free. If you do not want to file for divorce or legal separation, you may file a Petition for Custody and Support of Minor Children.